Gun-lock.



F. C. LEFLER.

GUN LOCK.

APPLICATION FILED nov. III. I9I4.

PapentedMar. 20, 1917:

2 SHEETS-SHEET l.

F. C. LEFLER.

GUN LocK.` v APPLICATION FILED NOV. IH. I9I4.

1,219,964. Patemmar. 20,1917.

2 SHEETS-SHEET 2- l Mx c: LEFLEB., or aocmnsa'na, NEW zonk.

GUN-LOCK.

Specification of Letters Patent.

I atented Mar. 20, 1917.

Application Med November 1E., 1914. Serielle. 812,728.

To all whom it may concern.'

Be it known that I, FRANK C. LEFLER, of'

Rochester, in the county of Monroe and State of New York, have inventeda new and useful Improvement in Gun-Locks, which improvement is fullyset forth in the following specification and shown in the accompanymgdrawings.

The present invention relates to gun locks and more particularly to thatty e in which a single trigger is adapted to e ect the op.

eration of a plurality of hammers, an object of this invention being toprovide a construction in which a very small trigger action is present,the trigger moving substantially the same distance for the several-firing actions. tion is to provide a stop action for the firstactuation of the trigger, which will be released upon the recoil of thegun, due to the unconscious release of the trigger by the operator onsuch recoil. Still another object of the invention is to provide alocking device which is operated upon the rebound of the gun and afterthe stopl action has become ineffective. A still further object of theinvention is to provide a gun lock which employes a minimum number ofpartsfor effecting the different functions of the gun. l. T0 these andother ends, the invention consists incertain parts yand* combinations ofparts all of which will be hereinafter described, the novel featuresbeing pointed out in the appended claims. In the drawings: 1 Figure 1 isa detail view of a portion of a gun embodying the present improvementsand showing the gun lock set for firing-the two barrels;

.Fig 2 is a view similar to Fig. 1 showing.

the position. of the parts after the trigger has been pulled and beforerecoil;

Fig. 3 1s a view similar to Figs. 1 and 2 showing the ositions of theparts during 4B the rebound o the gun;

Fig. 4 is a view similar to Figs. 1, 2 and 3 showing the positions ofthe parts after the firing of the second barrel;

Fig. 5 is a view of the opposite side of the l gun lock with the partsin the position shown in Fig. 4;

Fig. 6 is a section on the line a-(L, Fig. 4; Fig. 7 is a'section ontheline b--b, Fig 6 Fig. 8 isa perspective view of the sear lifter;

Fig. 9 is a perspective view of a controller Another object of theinvenffior determining which sear is to be actuated rst;

Fig. 10 is a perspective View ofthe setting devlce for .the controller;and

Flg. 11 1s a detail ofthe trigger spring.

Referrlng more particularly to the drawings, 1 indicates the barrels, ofwhichthere secured toare two in this instance, rigidl gether in the usuil manner anni7 having pivoted at 4 the irearwardly tilting breach frame5 which carries the usual hammers (not shown) controlled by the sears 6in the usual manner pi voted at 7 to the breach frame 5.

For controlling these sears, a single trigger .8 is employed pivoted at9 to a frame piece which ext-ends upwardly at 10 from the plate 11 at apoint between the sears 6, 'thence rearwardly at 12, again upwardly at13, again rearwaI dly at 14 and finally downwardly at 15 to ;he plate11, being held to said plate at bot f1 ends byscrews 16. The triggerpreferably does not directly yengage with the searsbut an intermediatemember 17 is employed ir. the form of a-'sear lifting Vplate which ispii'oted to turn about the axisV 9 of the trigger on theupwardly-extending portion 10 of the frame. This lifting plate overliesthe trigger so that it may be moved upwardly by the trigger to actuatethe sears 6.

Arranged on tac lifting plate is the .controller for determining whichof the sears is to be first actuated. This controller, in

Vthis instance, is in the form of a plate 18 0f the notch 19 and to therearward side of the notch 20, shoulders 0r faces 24 and 25 respectivelyare provided for respectively engaging the inturned ends 22 andl 23 ofthe sears v6, the arrangement being such that,

whenA the end 2S; of one scar lies over the' notch 19, the end 23 of theother sear will lie over the shoul der 25, and vice versa. By thisconstruction, the end of the sear which lies over the shoulder 24 or 2 5will be the first one to be ac auated while the end of the scar whichlies over the notch 19 or 20 will be the last to be actuated.

The movement of the controller 1S may be effected by ar` actuator in theform of, a

bar 26 which liesbelow the lifting plate. This bar has a finger piece 27extending to the exterior of the gun to one side of the trigger and itcarries an upwardly-extendin pin 28 which extends through a slot 29 inae lifting plate and engages within an opening 30 1n thecontroller, sothat a movement of the finger piece 27 is transmitted to the controller18. The actuator preferably partakesof the up and down movements of thelifting plate, and, to this end, isguided on the latter by means of apin 31 extending laterally from a rearward extension 32 on the liftingplate and operating within a slightly V-shaped slot 33 in a rearwardextension on the actuator 26, this slot being formed as shown forholding the actuator in its two positions, time being a slightresiliency in the actuator S4 to permit the actuator to move on the pn21 from one end of the notch to the other.

In order that both sears will not be simultaneously operated upon asingle movunent of the trigger in an upward direction, a stop action ofnovel construction is employed. This stop action preferably embodies adetent 35 bifurcated at its lower end and straddling the rearwardextension 32 of the lifter, being pivoted on said lifter at 36 so as toex` tend upwardly therefrom. Its upper end is adapted-to cooperate witha stop shoulder 37 formed on the rear face of the upwardlyextendingportion 13 of the frame piece and parallel with the longitudinal axis ofthe gun. A leaf spring 38 carried by the frame piece normally acts onthe detent-35 to hold the latter'out of a path where said detent willengage with the shoulder 37. Upon the upward movement of the trigger, arearward extension 39 on said trigger coperates with an arm 40 on thedetent 35 and swings the upper end of the detent 35 forwardly tocompress the spring 38 so that, on the first firing ofthe gun, theupper-end of the detent 35 will engage with the 'shoulder 37 and stopthe trigger and lifter before the second sear is actuated. Upon therecoil of the gun, the user unconsciously. releases the triggerand theupper end' of the detent then is moved4 automatically out of engagementwith the shoulder 37by the spring 38 and the sear lifter moves intooperative relation with the other sear due to the provision of a spring38* wliich'acts on the trigger 8.

To'the end that the second barrel will not be fired uponthe rebound ofthe gun, due

i to the rengagement of the finger ofthe oplifter, being ivoted at 42 tosaid lifter in rear of. the etent 35 to project upwardl from the lifter.The upper end of this blocl; is curved at 43 with the ivot 42 as thecenter, while the forward ace ofthe block is provided with an extension44 to co erate with the rear face of the frame portion 13 above theshoulder 37, this coperation b eing maintained undernormal conditions bya spring 45. As before stated, upon the recoil the detent 35 passesoutof engagement with the shoulder 37 so that, upon the rebound, theweighted block 4.1 may move real'- wardly in order that its curvedportion 43 may coperatie with the curved abutment 46 on the frameportion 15. 0n this rebound,.

the finger again unconsciously presses on the trigger so that1 thecurved face 43 is maintained in engagement with the curved abutment 46and holds the'trigger against upward movement until pressure on thetrgger is removed, when the parts assume the positions for the firing ofthe second barrel which is effected by an upward pressure on the triggercausing Vthe other sear to be lifted by engagement with the upper faceof the lifting plate 18, due to the lateral or inturned extension on theSear operating in one of the notches 19 or 20 of the controller.

The operation of the invention will, it is thought, be understood fromthe foregoing description butit may be summarized as follows:

Either barrel may be fired first, this being accomplished by shiftingthe finger piece 27 to present either of the inwardly-turned portions 22or 23 of the sears to its respective notch 19 or 20 in the controllerplate, and the other to itsv respective shoulder 24 or 25. lVhen thetrigger is pulled, after setting the gun, the shoulder 24,or 25will-elevate its respective Sear permitting the other Sear to remaininactive by enteri the notch 19 or 20. The trigger can only riseuntil'the stop detent 35 engages the abutment or shoulder 37. At. thistime, the recoil takes place, removing the detent 35 from the shoulder37 automatically due to the unconscious release of 'the trigger onrecoil. On the rebound of the gun, the rebound operated block 41 movesrearwardly and, at the saine time, pressure is unconsciously applied tothe'trigger 8, thus carrying the curved shoulder 43 of the block intoengagement with the curved shoulder 46, where it is held until thetrigger is again released when the gun is ready for the second firing,the latter being effected bythe engagement of the second sear with theupper face of the lifting plate 17 through one of the notches 19 or 20.l

A unlock constructed in accordance with this invention has a shorter orless trigger action dueto the stop action being released on the recoiland the trigger being held substantially in the position which `itreached los . ger during the rearward at the end of the first firingthereby .making the tri ger move substantially the same distance or'bbthfiring actions. The reboundoperated block swings rearwardly to act afterthe stop action and acts notwithstanding that the stop action has beenreleased.

lVhat I claim as my invention and desire to secure by Letters Patent is:Y

1. A doublebarrel gun havin in combination', two sears, one for eacsingle trigger for successively operating the sears, a spring acting onthe trigger to hold it against return movement after operating one ofthe sears, anda stop actionl for the first operation ofthe trigger,releasing the latter when pressure is relieved on the trigmovement ofthe gun due Vto recoil. l

2. A double-barrel gun havin in combination, two sears, one for eac"barrel, a. trigger, a lifter operated by the trigger to operate thesearssuccessively, a shoulder on the frame of the gun, a detent movablymounted on the lifter and operated by the trigger to engage saidshoulder `when thel trigger is pulle 'to fire the first barrel, a springfor moving said detent out of engagement with the shoulder when pressure1s relieved` on ythe trigger during the rearward movementof the gun dueto recoil and a sprin acting to prevent the return movement o ythetrigger when pressure-is relieved thereon.

3. A double barrel gun having, in combination, two sears, one for eachbarrel, a trigger, a lifter operated by the trigger and operating thesears successively, a pivoted detent on the lifter, engaged by thetrigger, a straight shoulder on the frame of the gun adapted to beengaged by the-detent and extending in a line parallel with thelongitudinal axis of the n, a spring for moving said "detent out oengagement with the shoulder when pressure is relieved on the triggerduring recoil, and a spring acting on said trigger to prevent the returnof the trigger when pressure is relieved thereon.

4. Adouble barrel n having, in combination, two sears, a single triggerfor successively operating the sears, a stop action for the first actionof the trigger, releasing the latter when pressure is relievedion saidtrigger during the rearward movement of .the gun due to recoil, ashoulder on the v ping positlon after rebound. barrel, a

5. A 'double bar rel gun having, in combination, vtwo sears, operatingmechanism for successively operating the sears and embodying a singletrigger, a stop action controlled by the trigger, a fixed shoulder onthe barrel, a detel 1t movable rearwardly to engage fthey fixed shoulderduring the forward movement of the bound to prevent firing triggerduring rebound.

6. A double bar rel gun having, in combination, two sears,.operatingmechanism for y pressure on the successively opera ting the sears andembodying a single trigger, a stop action controlled' by the trigger andmovable ,out of stopping position on the rearward' movement of the gundue to recoil, a curved shoulder on the frame, and a pivoted reboundactuated stcp movable rearwardly on the operating methanism to engagesaid shoulder. A

- 7. A double bari el gun', having, in combi nation,two sears, a slnglelifting plate for both sears, `a trigger for moving the plate, ashoulder, a deteiit mounted on the plate and shifted by the trigger to aposition to engage the shoulder when the triggerl is moved to "fire thefirst barrel, a spring for moving the detent out of engagement with itsshoulder during they rearward movement of the g'un dueto recoil, a fixedshoulder on the frame of the` gun, a rebound actuated' stop mounted onthe lifting plate and movable rearwardly 4to engage the shoulder on theforward movement of the gun due to rebound, and a sprng for moving saidstop out of engagement with its shoulderafter .theforward reboundmovement of the n. FRANK C. LEFLEgl.l Y Witnesses:

HAROLD H. EIMMs, ADA M. WHITMonn,

un due to the resoV

